Author: Robert Hyatt
Date: 12:44:05 09/10/01
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On September 10, 2001 at 15:08:38, Uri Blass wrote: > >the game was Deep thought's game and not Deeper blue's game so it was not >200Xfaster than yours At that event, we were probably running on a Cray XMP I would guess. I will try to look at my old tournament booklets to see exactly what we used. If it was an XMP, which is likely, then we were doing maybe 80K nodes per second if we were lucky. They could very easily be 100x faster than that depending on how many chess processors that particular version of DT was using. > > They >>proved this over a long period of time via WCCC and ACM tournaments. They then >>proved it against Kasparov and other GMs at the various exhibition matches they >>played. If you really think your programming skills are enough to offset their >>200X speed advantage, knowing Murray, Hsu, and the rest, then that is just an >>opinion you will have to keep. > >Amir did not say that his programming skills are better than Hsu's skills and he >did not say that he could do better than Hsu in his situation. > >Hsu did not have the hardware like Amir but had to develop the hardware. So what? I would _much_ prefer to have hardware designed specifically to tackle the chess problem, as opposed to a general-purpose computer. There is really no comparison between the two... > >Using available hardware that is 200 times faster and developing hardware are >different things. That doesn't compute to someone that has designed hardware. Hsu spent a lot of time developing the hardware. The _rest_ of the team spent a lot of time developing the code. > >Claiming that deeper blue was not better than the top programs of today is not a >personal attack against Hsu. > >You also did not need to develop the hardware when you worked on Cray blitz so >your situation was not similiar to Hsu's situation. > >Uri That totally misses the boat. I had to design new and never-before-needed algorithms to take advantage of the vector hardware we had. That was required to extract the potential speed of the Cray's hardware. I don't see what the hardware design issue has to do with anything, other than it was a distinct advantage they had.
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